1 A wheel and an axle together make a simple machine. 2  Wheels and axles are used to carry loads around easily, for long distances with very less effort. 3  A pulley consists of a wheel with a groove around it. 4  A rope can be passed through the groove.
In sociology and related social sciences, the idea of collective consciousness comes from the French theorist and sociologist Emile Durkheim. Collective consciousness is all about understanding what makes society work.
Critical consciousness is the ability to perceive social, political, and economic oppression and to take action against the oppressive elements of society. The concept of critical consciousness (conscientizacao) was developed by Paulo Freire primarily in his books: Pedagogy of the Oppressed.